Re: DDB not working with USB keyboard at xhci port

[sc dying <sc.dying%gmail.com@localhost>]

On 2017/08/21 12:00, Nick Hudson wrote:
> On 08/16/17 06:42, sc dying wrote:
>> When ukbd(4) is a console and connected to USB3 port, you can enter
>> into DDB by pressing ALT+CTRL+ESC but console freezes.
>> (on HEAD, netbsd-7, netbsd-8)
>>
>> xhci has two buses, sc->sc_bus is for usb3 and sc->sc_bus2 is for
>> usb2.  ukbd is usually connected at Low-Speed, so usbd_set_polling
>> sets sc->sc_bus2->ub_usepolling.
>> However, xhci.c checks only sc->sc_bus->ub_usepolling, that's why
>> xhci_poll does not call xhci_softintr.
>>
>> I can show a quick dirty patch.
>> It assumes ub_usepolling is always set by ukbd at LS/FS/HS.
> Can you test this patch please?

It does not work.

This patch helps xhci.c but does not usb_schedsoftintr in usb.c.

Thanks,